He added: “There are many ways of achieving energy efficiency, there isn’t one silver bullet that gets you to Passivhaus standard, but obviously with the overall build fabric our windows can make a huge difference.

“This will raise awareness of what we are capable of with our windows.”

Professor Mark Gillott, co-director of the Institute of Sustainable Energy Technology at The University of Nottingham, said: “Evidence and feedback to date shows that Passivhaus buildings are performing to a very high standard, which is crucial, given that the discrepancy between design aspiration and as-built performance for many new buildings in the UK can be as much as 50-100%.”

The Passivhaus standard was developed in Germany in the early 1990s by Professors Bo Adamson of Sweden and Wolfgang Feist of Germany.

The very first dwellings to be completed to the Passivhaus Standard were constructed in Darmstadt in 1991.